Come on. Flying in Y in the 60s on narrowbodies was way, way better than Y in widebodies today. Apart from seating, service was pretty much like J today, or even better.

But then, the price in real terms was consistent with the above. Flying in the sixties was a privilege of the wealthier. In other words, poor service in Y is driven by demand for cheap, cheaper, cheapest. Alas I suspect that won't change in the recovery, even if the demand is less. Prices may go up, and will need to because costs will be higher givn the lower demand. But service won't improve because price will continue being key. Unfortunately.